Imaging lens
a technology of imaging lens and peripheral area, applied in the field of imaging lens, can solve the problems of inability to obtain excellent optical performance and difficulty in correcting aberrations at a peripheral area, and achieve the effect of low profile, correcting aberrations, and high resolution
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example 1
[0247]The basic lens data is shown below in Table 1.
[0248]
TABLE 1Example 1Unit mmf = 4.20Fno = 1.67ω(°) = 39.5ih = 3.53TTL = 5.23Surface DatairdNdvd(Object)InfinityInfinity 1*1.84420.22001.65021.54(vd1) 2*1.44560.34433 (Stop)Infinity−0.3000 4*1.69170.72931.54455.57(vd2) 5*−24.98770.0630 6*7.75600.22001.67119.24(vd3) 7*4.15260.5819 8*6.00810.23001.67119.24(vd4) 9*5.48950.253310*−2.56340.52251.54455.57(vd5)11*−1.63320.034612*3.52200.40691.65021.54(vd6)13*3.81380.473414*2.98220.39031.54455.57(vd7)15*1.34320.500016Infinity0.21001.51764.2017Infinity0.4235Image PlaneConstituent Lens DataLensStart SurfaceFocal LengthComposite Focal LengthSag at Peripheral Area of Effective Diameter11−13.146f1235.148Sag2F0.438242.942Entrance Pupil DiameterSag3R0.23336−13.661EPD2.518Sag4F−0.28248−115.367Back Focus5106.909Bf1.06261245.674714−4.906Aspheric Surface DataFirst SurfaceSecond SurfaceFourth SurfaceFifth SurfaceSixth SurfaceSeventh SurfaceEighth Surfacek−1.512462E+00−2.696217E+00−2.048987E+00−4.62403...
example 2
[0253]The imaging lens in Example 2 satisfies conditional expressions (2) to (8), and (10) to (26) as shown in Table 8.
[0254]FIG. 4 shows spherical aberration (mm), astigmatism (mm), and distortion (%) of the imaging lens in Example 2. As shown in FIG. 4, each aberration is corrected excellently.
Example 3
[0255]The basic lens data is shown below in Table 3.
[0256]
TABLE 3Example 3Unit mmf = 4.25Fno = 1.48ω(°) = 37.2ih = 3.28TTL = 5.20Surface DatairdNdvd(Object)InfinityInfinity 1*1.82600.24001.65021.54(vd1) 2*1.50530.33603 (Stop)Infinity−0.3000 4*1.74130.85961.54455.57(vd2) 5*59.79490.0565 6*6.92090.24001.67119.24(vd3) 7*4.22500.2500 8Infinity0.2650 9*4.60220.24001.67119.24(vd4)10*4.78260.234211*−2.55820.50061.54455.57(vd5)12*−1.73680.021513*2.92800.39041.65021.54(vd6)14*3.11590.644115*9.31640.36561.58430.10(vd7)16*2.01140.500017Infinity0.21001.51764.2018Infinity0.2183Image PlaneConstituent Lens DataLensStart SurfaceFocal LengthComposite Focal LengthSag at Peripheral Area of Effective D...
example 3
[0257]The imaging lens in Example 3 satisfies conditional expressions (2) to (8), and (10) to (26) as shown in Table 8.
[0258]FIG. 6 shows spherical aberration (mm), astigmatism (mm), and distortion (%) of the imaging lens in Example 3. As shown in FIG. 6, each aberration is corrected excellently.
Example 4
[0259]The basic lens data is shown below in Table 4.
[0260]
TABLE 4Example 4Unit mmf = 4.25Fno = 1.47ω(°) = 39.1ih = 3.53TTL = 5.17Surface DatairdNdvd(Object)InfinityInfinity 1*1.73220.24001.65021.54(vd1) 2*1.42480.38503 (Stop)Infinity−0.3500 4*1.74480.86011.54455.57(vd2) 5*49.15860.0552 6*6.70590.24001.67119.24(vd3) 7*4.28490.2600 8Infinity0.3115 9*5.65250.24001.67119.24(vd4)10*5.83210.227611*−2.57000.44061.54455.57(vd5)12*−1.70070.024913*3.04950.36981.65021.54(vd6)14*3.46390.641815*13.06840.35161.54455.57 (vd7)16*1.93920.500017Infinity0.21001.51764.2018Infinity0.2333Image PlaneConstituent Lens DataLensStart SurfaceFocal LengthComposite Focal LengthSag at Peripheral Area of Effective...
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